1. Go to http://phet.colorado.edu 2. Click on electricity and magnetism sims. 3. Select the simulation “Magnets and Electromagnets.” It is at this link http://phet.colorado.edu/new/simulations/sims.php?sim=Magnets_and_Electromagnets 4. Move the compass slowly along a semicircular path above the bar magnet until you’ve put it on the opposite side of the bar magnet. Describe what happens to the compass needle. 5. What do you suppose the compass needles drawn all over the screen
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MAGNETIC LEVITATION AND TRAINS BY: MANISH KUMAR 2K12/EE/075 Delhi Technological University INTRODUCTION MAGLEV = MAGNETIC + LEVITATION Magnetic means “based on magnets” Levitation means “to rise and float in air” Maglev is a method of propulsion that uses magnetic levitation to propel vehicles with magnets rather than with wheels that the conventional trains use. Magnetic levitation is the use of magnetic fields to levitate a (usually) metallic object. Manipulating magnetic fields and
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2.1 Motors use the effect of forces on current-carrying conductors in magnetic fields 2.1.1 The motor effect The motor effect is where a force acts on a current-carrying conductor in a magnetic field. The right hand palm rule is used to find certain properties: fingers point to magnetic field‚ thumb points in DC direction and palm points to direction of the force. 2.1.2 Factors affecting the force acting on the current-carrying conductor Forces are experienced by the electrons in the conductor
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Electrical technology – assignment 4 Properties of electrical materials and Effective use of technology P.5. Describe the properties and a typical application of a solid and a liquid or gas electrical conductor. A conductor is a material that allows free movement of electrons and therefore allows easy flow of electricity. Most conductors are metals. A common metal used as a conductor in electrical technology is aluminium. It is used quite a lot as it cheap‚ lightweight and in abundance compared
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type of compressors are designed to take advantage of the magnetic bearing technology. Magnetic bearings: The lubricated bearings in ordinary systems is replaced by a digitally controlled magnetic bearing system‚ consisting of both permanent magnets and electromagnets. the compressor shaft” being the only rotating part is is levitated and held in place by magnetic bearings. Four positioning signals take the position to within 0.00005 of center.. This requires an amazing sampling rate of six million
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blue colored balloon on top of the lit candle. Observe and record what happens. How the Strength of a Magnet Varies with Temperature Materials and Equipment To do this experiment you will need the following materials and equipment: * safety glasses‚ * 5–10 permanent iron magnets of equal size and strength‚ * thermometer (minimum range 0–100°C)‚ * tongs for holding magnets (preferably plastic‚ for minimizing heat transfer)‚ * dry ice (frozen CO2)‚ * water ice‚
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inertia (I) of a bar magnet and time period of a bar magnet. rEQUIREMENTS (1) Deflection magnetometer (2) a bar magnet. (3) Oscillating magnetometer box (4) stopwatch. THEORY EXPERIMENTAL PROCEDURE PRECAUTIONS 1. Experimental magnets should be placed at the same horizontal level of the magnetic needle of magnetometer. 2. The deflection of deflection magnetometer should always lie between 300 and 600. 3. Magnets and magnetic materials
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lived from about 625 BC to about 545 BC.[1] Around the same time‚ in ancient India‚ the Indian surgeon‚ Sushruta‚ was the first to make use of the magnet for surgical purposes.[2] There is some evidence that the first use of magnetic materials for its properties predates this‚ J. B. Carlson suggests that the Olmec might have used hematite as a magnet earlier than 1000BC[3] [4] In ancient China‚ the earliest literary reference to magnetism lies in a 4th-century BC book named after its author‚ The
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Interior-Permanent Magnet Synchronous Motors using Design Sensitivity Analysis Mohammadreza Hassan Zadeh1‚ Arash Kiyoumarsi2 1 Electrical Engineering Department‚ Abhar Islamic Azad University‚ Abhar‚ 22‚ Iran‚ phone: +98 281 3349816‚ e-mail: mrh_zadeh@qazviniau.ac.ir‚ 2 Electrical Engineering Department‚ Isfahan University Isfahan‚ Iran‚ Abstract. This paper presents a shape optimal design approach to reduce the torque ripple of the interior-permanent magnet synchronous motors
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Technotronics‚ Inc. Written Analysis and Communication Technotronics‚ Inc. Memorandum PERSONAL & CONFIDENTIAL To: Vice President‚ Specialty Appliance Department‚ Technotronics‚ Inc. Date: 3rd September 1979 Subject: Report on the decision concerning commercial operation of ‘X-27’. Dear Sir‚ In response to the interdepartmental dispute between the Audio Product Section and the Magnetic Material Section‚ this report offers administrative relief to both the managers keeping
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